About a year ago, a series of startling papers came out. They describe how a single protein circulating in the blood of young mice can impose youth on the organs of older mice. Effects were found on muscles, the heart, and the brain, all of which appeared to revert to a more youthful state following exposure to the signaling protein GDF11.
This is why critical peer review and replicating experiments is crucial to how science is correctly advanced. Hurry up science, my organs aren’t getting any younger here. Get me an organ regeneration pill, or I’m going to need to get new ones… starting with your young scientist grad students!